Separator for ores



J. B. WILFORD. Separator for Gres'. n No. 226,258'. Patented April61880.

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2 Sheets--Sheet 2. J. B. WILFORD. Separator for Dres. No. 226,258'.Patented April 6,1880.l

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ArtNr JOHN B. VVILFOR-D, OF PHILADELPHIA, PENNSYLVANIA.

SEPAR'ATOR FOR omas.

SPECIFICATION forming part of Letters Patent No. 226,258, dated April 6,1880.

Application filed July 7, 1879. Y'

To all whom it may concern:

Be it known that I, JOHN B. WTILFORD, of Philadelphia, in the State ofPennsylvania, have invented an Improvement in Separators for Orcs andother substances of dierent specilic gravity, of which the following isa speciiication.

This improvement relates to the separator' usually known as aslime-table,7 for separating very line ores. The waterand ore have beenallowed to iiow upon the table, and a sudden sidewise movement has beengiven to such table to separate the heavier particles from the lighterones as the'same flow over the table.

In my' improvement I provide means for directing the ore one way and thesand another way as it leaves the edge of the table, so that the surfaceof the table is not obstructed by directing boards or strips, asheretofore, and hence I obtain the entire surface of the table toseparate upon. I also construct themachine so that the amount of motionis easily adjusted and the concussion .of the tableis allowed forwithout risk of injury to the parts.

In the drawings, Figure l is a plan below the line x m of Fig. 2, andFig. 2 is a vertical section at the line y y. Fig. 3 is a section at theline z z of Fig. l, and Fig. et is a partial section through the edge ofthe slime table and trough.

The sill-timbers c a, are to be framed into the sleepers b b andsecurely bolted together. The abutment-timber c is between the sleepersb b, and wider than the space that there is between b b, as seen in Fig.l by dotted lines, so that it is let into recesses cut in the oppositefaces of the sleepers b Z), and the end of this abutment c rests into arecess in one of the sills a, as seen in Fig. 2. The parts are boltedtogether, and the blow of the slimetable is received on the end of theabutment c and distributed on the other parts of the foundation-framingwith uniformity, so as to prevent injury.

The slime-table e is suspended by the rods j' from the head-frame g, andthese rods f are provided with nuts, so as to adjust the inclination ofthe table. There are rims on the two sides and the back of theslime-table, as at 2 3, and the ne substances and water are receivedupon the upper part of the table by a chtite, as seen by the dottedlines at It, Fig. 1. The slime-table may be divided into two or moreparts by partitions. The table shown has the one partition 5.

Resting upon the sleepers b there is a V- shaped frame, m, with boxes nfor the driving-shaft 0, having a pulley, o', and a cam, r. This cam ispreferably a single scroll, but it may have more tha"n one point,'and itacts against the beam s that runs across under the.

slime-table, and to which the frame of said table is securely bolted.

The cam 'r gives motion in one direction to the slime-table, and in sodoing the rod t is moved with the beam s and compresses the spring u,that is placed within a recess in the abutment c. Hence said springexpands 'and moves the slime-table suddenly the other way -when the endof the cam r passes clear of the end of s. The nut 8 on the rod t servesto adjust the tension of the spring u.

The movement given to the slime table is suddenly arrested by thehammer-block c striking against the anvil at the end of the abutment c.This hammer-block is made with lugs 9, that are let into the beam s, toprevent the concussion separating the hammer from the beam, said hammerbeing bolted firmly thereto.

The V-shaped frame m can be moved endwise by the screw 12, and in sodoing the shaft o is brought nearer to or farther from the end of thebeam s, and hence the movement given..

to the same and to the slime-table by the cam is adjusted.

The operation of the slime-table in separating the heavier from thelighter particles is well known, audit is usual to allow the materialsto pass over the edge of the table, the ore or metal goinginto onereceptacle and the refuse into another. The line of separation on thetable varies in consequence of the differences in the quality of thematerial supplied, and there generally has been a movable separatorlying upon the surface of the table, the same being placed by theoperator according' to his judgment. If any ofthe metallic particles arecaught by this separator, they are carried to the waste. Hence theslimetable is not operative below the point of this separator, and theuseful surface is contracted IOO to that extent. I avoid thesedifoulties by allowing all the materials to run over from the edge ofthe slimetable, and l provide a movable divider, q, that is supportedupon the edges ofthe trough p. Said divider is made as a double-inclinedtrough. Hence the apex ot' the inclines becomes the point ot'separation, and the attendant moves this divider along beneath the edgeof the slime-table to the proper point to turn the metals oft' in onedirection and the refuse in the other direction.

{eceptacles may be provided below the trough p, or chutes may beemployed, as denoted by the dotted lines in Fig. 3, to take the ore offin one direction, while the refuse goes by the other trough or chute.

I claim as my invent-ionl. The combina-tion, with the slime-table andits actuating mechanism, ot' the abutment c, sleepers b Z1. and sills aIa, framed and bolted together, substantially as set forth. whereby theconcussion on the foundation -framing is distributed, as specified.

2. The frame m, oarryin g the actuating-shaft o. in combination with theadjusting-screw 12, slime-table, and foundation-framing, substantiallyas set forth.

3. The combination, with the abutment c, the slime-table, and its beams, of the hammer-block fu, made with lugs letinto the beam, and bolts toconnect the same, substantiall5r as set forth.

4. The combination, with the slime-table, of the separate movabledivider q below the delivery edge of the said table, and the supportsfor said divider, ruiming parallel, or nearly so, to the edge of theslime-table, whereby the divider can be moved along beneath the edge ofthe table, for the purposes and substantially as set forth.

Signed by me this 30th day of June, A. D. 1879.

JOHN B. WILFORD.

XVitnesses:

GEO. T. PINGKNEY, CHAS. H. SMITH.

